Roller assembly



FIG. 1 is a right, front and top perspective view of the roller assembly showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a left, front and top perspective view thereof;

FIG. 9 is a left, rear and bottom perspective view thereof;

FIG. 10 is a right, front and top perspective view of the roller assembly of FIG. 1 in a position of use with a detection apparatus; and,

FIG. 11 is a left, front and top perspective view thereof.

The broken lines depict portions of the roller assembly that form no part of the claimed design.

Additional broken lines illustrating a detection apparatus in FIGS. 10 and 11 depict environmental subject matter that forms no part of the claimed design. 

CLAIM The ornamental design for a “roller assembly”, as shown and described. 